The BURKERT 20034411 is a Type 5282 servo-assisted 2/2-way diaphragm solenoid valve designed for the reliable control of neutral gases and liquids. A minimum differential pressure is required for the valve to function. This specific model features a durable stainless steel body and FKM (fluororubber) seals, making it suitable for hot air, per-solutions, and hot oils up to 90 °C. The solenoid coils are molded with a chemically resistant epoxy, and the valve is equipped with a service-friendly manual override for start-up and testing.

Key Features

• Servo-assisted diaphragm valve with a 32.0 mm (DN 32) orifice.
• Separating diaphragm for aggressive and contaminated media.
• Closing and opening times can be adjusted individually.
• Service-friendly manual override.

Technical Data

Property	Value
Valve Function	A - normally closed - inlet port 1 (P/NC)
Port Connection	Internal thread G 1 1/4
Orifice	32.0 mm
Kv Value (Water)	20 m³/h
Operating Voltage	24 V DC
Pressure Range	0.2...12 bar
Medium Temperature	0 °C...+90 °C
Ambient Temperature	Max. +55 °C
Body Material	Stainless steel
Seal Material	FKM (Fluor rubber)
Degree of Protection	IP65 (with suitable connector)

Circuit Function

Circuit function A (CF A): 2/2-way solenoid valve, servo-controlled, normally closed.

Material Specifications

• Coil: Epoxy
• O-ring / Diaphragm: FKM
• Valve Body / Cover: Stainless steel
• Internal Valve Parts: Stainless steel, brass
• Manual Override: PA

Dimensions (Threaded Variant)

Dimensions for DN 32 (G 1 1/4):

• A1: 122.0 mm
• B1: 147.0 mm
• D1 (G): G 1 1/4
• F1 (G): 20 mm
• E1: 85 mm
• L1: 126 mm
• SW: 50 mm

Installation & Operation

Safety Instructions

• Risk of injury from high pressure in the equipment. Before loosening the pipes and valves, turn off the pressure and vent the pipes.
• Risk of injury due to electrical shock. Before reaching into the device or the equipment, switch off the power supply and secure to prevent reactivation.

Manual Emergency Actuation

Note

When the manual emergency actuation is locked, the valve can no longer be actuated electrically.

Setting the Switching Times

The closing and opening times of the valve can be changed if required with the side throttle screws.

Caution

Discharge of medium if the throttle screws are unscrewed too far. Pressure surges caused by liquid media and short closing times may reduce the service life of the diaphragm and destroy other devices and components in the system.